1 /*

     2 * Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

     5 * under the terms of "Eclipse Public License v1.0"

     6 * which accompanies this distribution, and is available

     7 * at the URL "http://www.eclipse.org/legal/epl-v10.html".

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description: 

    15 *

    16 */

    17 

    18 

    19 #ifndef __ERROR_CONCEALMENT_INTERFACE__H

    20 #define __ERROR_CONCEALMENT_INTERFACE__H

    21 

    22 #include <glib.h>

    23 #include <gst/gstelement.h>

    24 #include <gst/gstpluginfeature.h>

    25 #include <gst/gst.h>

    26 

    27 G_BEGIN_DECLS

    28 

    29 #define GST_TYPE_ERROR_CONCEALMENT     (gst_error_concealment_get_type ())

    30 #define GST_ERROR_CONCEALMENT(obj)     (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_ERROR_CONCEALMENT, GstErrorConcealment))

    31 #define GST_IS_ERROR_CONCEALMENT(obj)      (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_ERROR_CONCEALMENT))

    32 #define GST_ERROR_CONCEALMENT_GET_IFACE(obj)   (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_ERROR_CONCEALMENT, GstErrorConcealmentIntfc))

    33 

    34 typedef struct _GstErrorConcealment      GstErrorConcealment;

    35 typedef struct _GstErrorConcealmentIntfc GstErrorConcealmentIntfc;

    36 

    37 struct _GstErrorConcealmentIntfc

    38     {

    39     GTypeInterface parent;

    40     /**

    41      * Indicates that an frame of encoded audio is lost and that error

    42      * concealment should be performed for a lost frame.

    43      * By definition, the next buffer sent to the decoder will contain no

    44      * valid audio data.

    45      * @return status

    46      */

    47     gint (*ConcealErrorForNextBuffer) (void);

    48 

    49     /**

    50      * Puts the hwdevice into a frame-based interface.

    51      * The alternate mode of interface would be buffer-based.

    52      * @param aFrameMode

    53      * @return status

    54      */

    55     gint (*SetFrameMode)(gboolean aFrameMode);

    56 

    57     /**

    58      * Query to find out if frame-based interface is required by hwdevice

    59      * for supporting error concealment.

    60      * @param aFrameModeRqrd indicates if frame mode is required.

    61      * @return status

    62      */

    63     gint (*FrameModeRqrdForEC)(gboolean* aFrameModeRqrd);

    64 

    65     };

    66 

    67 IMPORT_C GType gst_error_concealment_get_type(void);

    68 

    69 G_END_DECLS

    70 

    71 #endif /* __ERROR_CONCEALMENT_INTERFACE */